Modeling Concordance Correlation Coefficient for Longitudinal Study Data

Measures of agreement are used in a wide range of behavioral, biomedical, psychosocial, and health-care related research to assess reliability of diagnostic test, psychometric properties of instrument, fidelity of psychosocial intervention, and accuracy of proxy outcome. The concordance correlation coefficient (CCC) is a popular measure of agreement for continuous outcomes. In modern-day applications, data are often clustered, making inference difficult to perform using existing methods. In addition, as longitudinal study designs become increasingly popular, missing data have become a serious issue, and the lack of methods to systematically address this problem has hampered the progress of research in the aforementioned fields. In this paper, we develop a novel approach to tackle the complexities involved in addressing missing data and other related issues for performing CCC analysis within a longitudinal data setting. The approach is illustrated with both real and simulated data.     

IRT模型参数估计的新方法——MCMC算法

本研究主要探讨MCMC算法在IRT模型参数估计中的实现及其估计精度.通过模拟多种实验条件(人少题少、人题适中、人多题多、被试数及其参数固定情况下项目数变化、项目数及其参数固定情况下人数变化),考察两参数和叁参数Logistic模型的MCMC算法对其参数估计的精度,并与国际通用测量程序-Bilog程序(E-M算法)进行比较研究.模拟实验研究表明,上述各种实验条件下,MCMC算法均可用于IRT模型参数估计,且其估计的精度均较Bilog程序(E-M算法)高,值得推广.     

小学语文教科书中人物的心理学研究

语文教科书中的人物具有一定的特征,并影响学生的社会化。本文对人民教育出版社出版的从1993年9月开始使用至今的九年义务教育六年制小学语文教科书进行了统计和分析。统计结果显示：1．在民族类别上,汉族人是少数民族人的25．2倍,显示了以汉族人为中心的特点。2．在形象倾向上,人物的形象倾向反映了教学大纲中的一些要求．但对现代人的形象和时代发展所需的一些精神品质反映不够。3．在身份／职业上,人物的身份／职业主要集中于政治家、军人、文学家等少数几种．对普通平凡的身份／职业描写不多。4．在国别上．中国人物的数量是外国人物数量的5．5倍,对外国人的形象描写未能较好体现出时代发展的要求。     

Chinese adaptation of Emotion Regulation Questionnaire for Children and Adolescents (ERQ‐CCA): A psychometric evaluation in Chinese children

This study validated a Chinese adaptation of the Emotion Regulation Questionnaire for Children and Adolescents (ERQ‐CCA), a self‐report instrument that evaluates two emotion regulation (ER) strategies, based on the process model of ER. The ERQ‐CCA was evaluated using a sample of 1381 Chinese children aged between 7 and 12 years. The internal consistencies of the two factors indicated adequate reliability. Confirmatory factor analysis (CFA) revealed good support as the structure proved to be identical with that of the original instrument. Multigroup CFA supported an invariant factor solution of the ERQ‐CCA across several demographic variations (gender, age, registered permanent residence and migrant status) in different groups. Test–retest correlations over a 2‐month period were calculated using a subsample of children (N = 70). Convergent validity was evaluated in relation to the model dimensions of the ERQ‐CCA, Chinese version of the Children's Depression Inventory, and Chinese version of the Eysenck Personality Questionnaire for Children and Adolescents. Results indicated that the ERQ‐CCA has generally satisfactory reliability and validity in investigating the use of two ER strategies during the middle childhood developmental period.     

思维方式的虚拟性转换及其意义

当今时代,随着信息网络技术和虚拟现实技术的发展,虚拟实践正崛起为一种新的实践方式。随着实践形态的变化,主体的思维方式也从现实性的思维转向虚拟性的思维。深入探讨虚拟实践所引发的思维方式转换,揭示虚拟思维的新特点及其社会功能,既是当代社会发展实践诉求的反映,也是进一步深化马克思主义哲学研究的需要。一虚拟实践对思维主体的影响虚拟是表征主体超越现实性的哲学范畴。“虚拟”本身有以下两层含义:一是对现实的模拟,强调对现实的仿真效果;二是对现实事物的超越。虚拟并不是虚幻和真“无”,而是借助现代科技的现实创造。虚拟作为一…     

Catastrophizing,Depression and Anxiety During Pregnancy: Relation Between Lumbopelvic Pain and Physical/Social Functioning

Catastrophizing, a cognitive behavioral aspect of pain, is defined as an excessively negative orientation against a noxious stimulus. The primary goal of the present study is to assess the association between catastrophizing and lumbopelvic pain intensity during the pregnancy period, the secondary goal is to explore the variation of pain catastrophizing, anxiety and depression, and the tertiary goal is to investigate the relationship between catastrophizing and quality of life. After approval, pregnant women with lumbopelvic pain were invited to join in the study. During admission, participants were asked to complete questionnaires including Pain Catastrophizing Scale, Beck Anxiety Inventory, Beck Depression Inventory-II, and Short Form-36. Age, gravida, parity, number of abortus, number of live-births and the pain intensity score were recorded. A total of 429 women were enrolled in the study. Pain catastrophizing scores showed a fluctuation during pregnancy, and were significantly correlated with the scores of Beck Anxiety Inventory, Beck Depression Inventory, Visual Analog Scale, and Short Form-36 sub-scales including social functioning, vitality, physical functioning and mental health. The present study demonstrated that catastrophizing level shows an alteration throughout the pregnancy period, and variation in catastrophizing shows an approximately similar course with pain intensity, depression and anxiety.